In a certain high school, there are 31 students who are members of the chess club or the swim team or both. How many students belong to either the chess club or the swim team, but not both? (1) The chess club has 24 members. (2) The swim team has 20 members.

Data Sufficiency questions are exclusive to the GMAT.

Each Data Sufficiency question poses a question, followed by two statements. Your task is to evaluate the statements to determine at what point there is or is not sufficient information to answer the question.

Unlike the Problem Solving questions, you do not actually have to answer the question posed. Instead, you select one of five fixed answer choices that offer different options about the sufficiency of the information provided in the two statements.